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Chiang Mai tops list of world’s most polluted city for three days running

Mar 14. 2019
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By The Nation

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Chiang Mai has been topping the list of the world’s most polluted major cities for some hours every day since Tuesday.

As of 1.49pm on Thursday, Chiang Mai ranked No 1 in terms of air pollution. Its Air Quality Index stood at 293, a far cry from the safe limit of 100. 

The list of the most polluted cities is complied by, which extensively monitors air quality across the world.

Coming in after Chiang Mai on Thursday afternoon were the Bangladeshi capital of Dhaka and India’s New Delhi respectively. 

Chiang Mai also hit the No 1 spot for some hours on Tuesday and Wednesday. 

Agricultural fires are mostly to blame for the pollution in Chiang Mai, and Chiang Mai University has suspended its classes until Friday as a protection measure. 

Several children joined a rally on Thursday demanding their right to clean air and have written petitions to the Chiang Mai governor demanding immediate solutions.

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